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Finding the Fourth Proportional to 950.49, 1,425.74 and 744.57

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Solution

The fourth proportional to 950.49, 1,425.74 and 744.57 is: 1,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.49 : 1,425.74 = 744.57 : x
  2. Step 2: Convert to fraction form
    950.49/1,425.74 = 744.57/x
  3. Step 3: Cross multiply
    950.49x = 1,425.74 × 744.57
  4. Step 4: Simplify right side
    950.49x = 1,061,559.51
  5. Step 5: Solve for x
    x = 1,061,559.51/950.49
  6. Step 6: Final answer
    x = 1,116.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.